72671308 has 6 divisors (see below), whose sum is σ = 127174796. Its totient is φ = 36335652.

The previous prime is 72671267. The next prime is 72671359. The reversal of 72671308 is 80317627.

It is a super-2 number, since 2×72671308² = 10562238012861728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9083910 + ... + 9083917.

Almost surely, 2^72671308 is an apocalyptic number.

It is an amenable number.

72671308 is a deficient number, since it is larger than the sum of its proper divisors (54503488).

72671308 is a wasteful number, since it uses less digits than its factorization.

72671308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18167831 (or 18167829 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 72671308 is about 8524.7467997589. The cubic root of 72671308 is about 417.3057085379.

The spelling of 72671308 in words is "seventy-two million, six hundred seventy-one thousand, three hundred eight".